2 *------------------------------------------------------------------
3 * af_packet_api.c - af-packet api
5 * Copyright (c) 2016 Cisco and/or its affiliates.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *------------------------------------------------------------------
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/devices/af_packet/af_packet.h>
27 #include <vnet/vnet_msg_enum.h>
29 #define vl_typedefs /* define message structures */
30 #include <vnet/vnet_all_api_h.h>
33 #define vl_endianfun /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
40 #include <vnet/vnet_all_api_h.h>
43 #include <vlibapi/api_helper_macros.h>
45 #define foreach_vpe_api_msg \
46 _(AF_PACKET_CREATE, af_packet_create) \
47 _(AF_PACKET_DELETE, af_packet_delete) \
48 _(AF_PACKET_SET_L4_CKSUM_OFFLOAD, af_packet_set_l4_cksum_offload) \
49 _(AF_PACKET_DUMP, af_packet_dump)
52 vl_api_af_packet_create_t_handler (vl_api_af_packet_create_t * mp)
54 vlib_main_t *vm = vlib_get_main ();
55 vl_api_af_packet_create_reply_t *rmp;
57 u8 *host_if_name = NULL;
60 host_if_name = format (0, "%s", mp->host_if_name);
61 vec_add1 (host_if_name, 0);
63 rv = af_packet_create_if (vm, host_if_name,
64 mp->use_random_hw_addr ? 0 : mp->hw_addr,
67 vec_free (host_if_name);
70 REPLY_MACRO2(VL_API_AF_PACKET_CREATE_REPLY,
72 rmp->sw_if_index = clib_host_to_net_u32(sw_if_index);
78 vl_api_af_packet_delete_t_handler (vl_api_af_packet_delete_t * mp)
80 vlib_main_t *vm = vlib_get_main ();
81 vl_api_af_packet_delete_reply_t *rmp;
83 u8 *host_if_name = NULL;
85 host_if_name = format (0, "%s", mp->host_if_name);
86 vec_add1 (host_if_name, 0);
88 rv = af_packet_delete_if (vm, host_if_name);
90 vec_free (host_if_name);
92 REPLY_MACRO (VL_API_AF_PACKET_DELETE_REPLY);
96 vl_api_af_packet_set_l4_cksum_offload_t_handler
97 (vl_api_af_packet_set_l4_cksum_offload_t * mp)
99 vlib_main_t *vm = vlib_get_main ();
100 vl_api_af_packet_delete_reply_t *rmp;
103 rv = af_packet_set_l4_cksum_offload (vm, mp->sw_if_index, mp->set);
104 REPLY_MACRO (VL_API_AF_PACKET_SET_L4_CKSUM_OFFLOAD_REPLY);
108 af_packet_send_details (vpe_api_main_t * am,
109 vl_api_registration_t * reg,
110 af_packet_if_detail_t * af_packet_if, u32 context)
112 vl_api_af_packet_details_t *mp;
113 mp = vl_msg_api_alloc (sizeof (*mp));
114 memset (mp, 0, sizeof (*mp));
115 mp->_vl_msg_id = htons (VL_API_AF_PACKET_DETAILS);
116 mp->sw_if_index = htonl (af_packet_if->sw_if_index);
117 clib_memcpy (mp->host_if_name, af_packet_if->host_if_name,
118 MIN (ARRAY_LEN (mp->host_if_name) - 1,
119 strlen ((const char *) af_packet_if->host_if_name)));
121 mp->context = context;
122 vl_api_send_msg (reg, (u8 *) mp);
127 vl_api_af_packet_dump_t_handler (vl_api_af_packet_dump_t * mp)
130 vpe_api_main_t *am = &vpe_api_main;
131 vl_api_registration_t *reg;
132 af_packet_if_detail_t *out_af_packet_ifs = NULL;
133 af_packet_if_detail_t *af_packet_if = NULL;
135 reg = vl_api_client_index_to_registration (mp->client_index);
139 rv = af_packet_dump_ifs (&out_af_packet_ifs);
143 vec_foreach (af_packet_if, out_af_packet_ifs)
145 af_packet_send_details (am, reg, af_packet_if, mp->context);
148 vec_free (out_af_packet_ifs);
152 * af_packet_api_hookup
153 * Add vpe's API message handlers to the table.
154 * vlib has alread mapped shared memory and
155 * added the client registration handlers.
156 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
158 #define vl_msg_name_crc_list
159 #include <vnet/vnet_all_api_h.h>
160 #undef vl_msg_name_crc_list
163 setup_message_id_table (api_main_t * am)
165 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
166 foreach_vl_msg_name_crc_af_packet;
170 static clib_error_t *
171 af_packet_api_hookup (vlib_main_t * vm)
173 api_main_t *am = &api_main;
176 vl_msg_api_set_handlers(VL_API_##N, #n, \
177 vl_api_##n##_t_handler, \
179 vl_api_##n##_t_endian, \
180 vl_api_##n##_t_print, \
181 sizeof(vl_api_##n##_t), 1);
186 * Set up the (msg_name, crc, message-id) table
188 setup_message_id_table (am);
193 VLIB_API_INIT_FUNCTION (af_packet_api_hookup);
196 * fd.io coding-style-patch-verification: ON
199 * eval: (c-set-style "gnu")